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A tank for storing water is conical in shape, with maximum radius 20 m and maxi­mum depth 15 m. The large, circular end of the tank points vertically upwards and is open to the air. It is known that the volume of water in the tank will decrease at a rate...

The moon's distance from the earth is 360000 km and its diameter subtends an angle of 31 minute at the of the observer on the earth . Find the radius of the moon.

The angles are adjacent and form an angle of 140.the smaller is 28 less than the larger

Answer to this question is 6/6 equal to 1. So answer is 1.

37.5KM/hr

0.0054 = 54/10000 = 27/5000

Prove that cos52°+cos68°+cos172=0

7/5

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